Partial duplex adapter insert



FIG. 1 is a top view of a partial duplex adapter insert;

FIG. 2 is a left side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a bottom view thereof; and,

FIG.7 is a front perspective view thereof.

The broken lines are included for the purpose of illustrating environmental features and form no part of the claimed design. 

CLAIM The ornamental design for a partial duplex adapter insert, as shown and described. 